42674440 has 32 divisors (see below), whose sum is σ = 98363160. Its totient is φ = 16652800.

The previous prime is 42674371. The next prime is 42674461. The reversal of 42674440 is 4447624.

It can be written as a sum of positive squares in 4 ways, for example, as 35736484 + 6937956 = 5978^2 + 2634^2 .

It is a super-2 number, since 2×42674440² = 3642215658627200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371 + ... + 14650.

Almost surely, 2^42674440 is an apocalyptic number.

42674440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42674440 is an abundant number, since it is smaller than the sum of its proper divisors (55688720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42674440 is a wasteful number, since it uses less digits than its factorization.

42674440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26073 (or 26069 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 42674440 is about 6532.5676422062. The cubic root of 42674440 is about 349.4534053314.

The spelling of 42674440 in words is "forty-two million, six hundred seventy-four thousand, four hundred forty".